Mowing machine



Oct. 4, 1927.

C- S. BROWN MOWING MACHINE Filed Feb. '15. 1924- 3Sheets-Sheet IN VEN TOR.

ATTORNEYS I -1, 644,56 Oct. 4, c. 5. BROWN 3- MOWING MACHINE f I s Sheets-Shee 2 ..F. d I6 11@ Fe 13, 9

ATTORNEYS,

Oct. 4, 19278 BROWN MOWING MACHINE I Filed Feb. 15, 12524 5 Sheets-Sheet 3 INVENTOR.

k'nifefl i'n its reciprocating movement, That sis, thei'knife 'back'slides in a grooveformed flbyithe front, edge, of theibar 1 at 1", and the i 'or ba ll and socket joint "9' which permits the carrier and mower'bar to be raised and lowcred withoutfafiecting thedrlving shaft for i n i cutter barf'toi float over; and conform; tofthe nnevenness 10f the groundg Thejcarrler 31s eningthi knife, .thepitman having been first ,i etaohedfroml the crank and the ball of the ;bafi andsocketjoint.

The: mean'sl for actuating or reciprocatmg the 'mo werknifej 7 ,comprises shaft 14 suitahlyizjoiirnalled in=andextending lengthiser the carrier-3 and'having a crank 15 pltmanlfi mountedat one'end on thecrank V in- 17,La-n d connected at its other fendby a .bal'l'an'd socketrjoint tofthe mower knife.

, rI The rear sendof the shaft 14 is connected 7 1 by a iuniversal-jointlSto a suitable power 1; o -drive" shaft 19' which is actuated inany suitable manner and controlled through a suit-able clutch; 1; The {center 1 of the universal doesnot affect-the operation of theEshafts joint; which hall" is" arranged near 1 an diu'sual-l y "slightl in *front 'ofthe axis of blwrfand is;arrangedi-z-alsofpreferablyi to be intelaect'edfby a plane-common to or cone 'lZl-hlihgithe .alxesof the shaft 14, and-prefer- .cz'in one: position designated by the line of Fig-Q5; 21, 21,-are socket sections fclmodhyioppositearms of theg;pitman, said arms heing idrawnf toward each 'otherjtojfad the'socketj on the ball bylja boltand nut 22', 'Ihe'crank-is usuallyformed with a u tergbalanceaiiandthe:pitma -ist q ne The-carrier or tube 3 connected at. its i rear end to the main frame8'by a universal theknife; The 'carr'ieris flexibly supported 7 *in vany fwelltknown; manner to permitthe f elevated andlowered by any suitablemeans, "here shown, as alever- 10 pivoted atll to the' ymainwframe andhaving an arm :12 on, the

" other sideof its axis which arm' is connected y nnsly,uponv movement of the'lever 16,,the.

ii-orilowered, :As seen-in Figureiii, whenthe *Qpositions, the knifefcanube slid' outpastthe its front end a'nd itconnecting rod or I I able. means, that here shown being manually operable and consisting of'a hand lever 26 s joint. 18 is ,at the. center of the "joint 9, so

"- thatimovement of, thefcarrierwup anddown hlng locatedl ingthe carrier tube 3, winding 0:1. grassfor rainoni'thei shaft is prevented,

'1 2Q? designates "the 1,-ball of the balljand I 'irelatively to the carrier, means for reciproeating, the knifeco'mprising a shaft j'ournal-led in' the carrier radial with theaXi'al V anaemic;more tilting axis of the mower i i r 'hne of the pivot, a crank on-the shaft, a

the.crankh pin hy an anti-friction bear- 1 v a, t a ff liaiball2b, ;duriiig-7the i ftiitmg of ;the-moweribargliand shoe 2 1p PT-land dawn man arc abdut the shaft 6 which 1 plane of rotationof the pitman 16.

' Owing to the arrangement or locationof the ball 20 ofthe ball and socket jointrelatively to the shaft 6 or the tiltingaxis of the mower bar and to the shaft 14 and crank 15, the ball and socketinoves in a small are, T :designated B-'-B, struck from the center of the shaft 6, such arc approximating, for all practical purposes a straight line in the plane of rotation of the pitinan. Thus the relation -'ofthe connecting rodato the crank pin and to the ball and socket joint remains practicallynthe same in all tilted positions of i the mower bar, so that there is practically noor verylit tle side motion of the pitman onthe crank pin in the. different tilted posi tions.

. Also, the'ball in one of the tilted i id moves in a line or planefcontaining' the axis of the shaft 1d and when the mower bar is tilted up or down, the ball is; offset from such plane but very little, and hence the knife is reciprocate'd with minimum side thrustand friction. Or the lineof movement of the ball 20 passes near'the axis of the shaft'14t inhall tilted positions of the mower. bar and when the mower bar or shoe 2 is in central position, that is not tilted up or down, such line intersects the axis of the shaft 14. v y

The mower bar may be tiltedby any suit-' pivoted to the main frame and connected a link 27 ,toan arm 28 extending upwardly from the shoe 2 substantially radial withv thetilting axis 6 of the mower bar. The hand lever 26 is; held inany position by the usual'rack and pawl the rack or segment being indicated at 29. I

What I:claim is In a mowing machine, a mower bar, a-

reciprocating knife, a carrier for the bar, a'

.pivot connecting the c arrier and the inner end of the bar,thep1'vot extending length Wire of the bar whereby thejbar is tiltable I pitman connecting the crank and the knife and connected to the knife byfa balliand socket joint and means for tilting the'mower 1 5 bar Y 1 i Inaunowmg machine, a mower-bar, a

reciprocatingknife, a carrier for-the bar, la

wisejofthe bar whereby thefbar is 'tiltablem metas a- Qraek aeltlie'knlife and v Iii! connected to the knifeby a ball and socket joint, the ball and socket joint being movable near and in a line parallel to thepivot 'of the mower bar and approximately in the plane of movement of the pitman in all tilted positions of the mower bar, and means for tilting the mower bar.

8. In a mowing machine, a mower bar, a

reciprocating knife, a carrier, for the bar, a pivot connecting the carrier and the inner end of the bar, the pivot extending lengthwise of the bar whereby the bar is tiltable relatively to the carrier, means for recipro cating the knife comprising a shaft journalled in the carrier radial with the'axial line of the pivot,'a crank on the shaft, a pitman connecting the crank and the knife and connected to the knife by a ball and socket joint located in the front of the axis of,

said pivot and near suchaxis and means for tilting the mower bar. V

4. In a mowing machine, a frame, amower bar, a reciprocating knife mounted on the bar, a carrier for the bar, the bar being pivoted to the carrierwhereby it is tiltable about an axis extending lengthwise of such bar, means for actuating the knife compr sing a drive shaft ournalled 1n the frame, a

drivenls-thaft jouri'ialled'in the carrier, a uni-- versal oint connecting the rear end of thedriven shaft and the front end of the driv- V reciprocatory knife mounted on the bar, a'

ing shaft, a casing enclosingthe driven shaft and the universal joint, comprising ball and socket sections concentric with the universal joint. 7

5. In a mowing machine, a mower bar, a

carrier for the bar, the bar having a shoe at its inner end, a member formed. with a bearing, the carrier having a pivot on which the bearing is mounted whereby the bar is tilt-able about an axle ext-endlng lengthwise of the bar, and means common to the shoe and member for securing them together and for securing the bearing on the pivot.

6. In a mowing machine, a mower bar, a j -rec1procatory knife mounted on the frame,

a carrier for the bar, thebarhaving a shoe at its inner end and having means formed with a bearing, the carrier having a shaft on which the bearing is mounted whereby the mower bar and its shoe are pivoted to the carrier ona transverse axis and the bar and shoe are tiltable about an axis'nextending lengthwise of the bar, means common to the 7 shoe, mower bar, and thQGaITlBI to hold sald and extendingin a direction lengthwise, of

he bar, a plate mounted on the mower bar, and having a split bearing on the shaft,and clamping means extending through the shoe, the 'bar, the plate and the split bearing to hold the shoe, mower bar, plate and split bearingain assembled relation on said shaft.

8.;In a mowing machine, a mower'bar, a reciprocatory knife on the bar, the bar having a shoe at the inner end thereof, the carrier being formed with a laterally extending yoke, a shaft mounted on thefyoke and extending in a direction lengthwise of the bar and the shoebeing formed with a channel I in which one end of thewbar is 'seated, the channel being wider than thebar, a plate mounted on the mower bar and having a split bearing on the shaft, the plate having a flan e located between one edge of the mower bar and one side of said channel and v "the mower bar abuttingon lts other edge against the other side of the channel and clamping means "extendingthrough the i '85 f mower bar, the shoe, the plate and the split i,

bearing to hold said parts assembled re lationon the shaft. 7 v c In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 25th day of January 1924.

' "ioHAs s, BROWN. I 

